#183071#183071

#183071 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.3% C 0.116 H 265.2°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#183071
RGB	rgb(24, 48, 113)
HSL	hsl(224, 65%, 27%)
HSV	hsv(224, 79%, 44%)
CMYK	cmyk(78.8%, 57.5%, 0%, 55.7%)
CIE-LAB	lab(21.94, 16.16, -40.26)
CIE-LCH	lch(21.94, 43.38, 291.87°)
OKLab	oklab(33.3% -0.0097 -0.116)
OKLCH	oklch(33.3% 0.116 265.2)
XYZ	xyz(4.4132, 3.4999, 16.0625)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183071 #715918

analogous

#185D71 #183071 #2C1871

triadic

#183071 #711830 #307118

tetradic

#183071 #71185D #715918 #18712C

square

#183071 #71185D #715918 #18712C

split-complementary

#183071 #712C18 #5D7118

monochromatic

#050B19 #0D1B3F #183071 #2345A3 #305CD3

Accessibility & contrast

On white

12.35

#183071 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#183071 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183071

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183071	#FFFFFF	#000000	##FFFFFF
##183071	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003973

Deuteranopia (green-blind)

#003170

Tritanopia (blue-blind)

#00404B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #183071;
/* rgb */ color: rgb(24, 48, 113);
/* oklch */ color: oklch(33.3% 0.116 265.2);

Tailwind

colors: {
  custom: {
    50: '#64679a',
    500: '#183071',
    950: '#000000',
  },
}

SCSS

$custom: #183071;
$custom-light: #64679a;
$custom-dark: #000000;

JSON

{
  "hex": "#183071",
  "rgb": {
    "r": 24,
    "g": 48,
    "b": 113
  },
  "hsl": {
    "h": 223.82,
    "s": 64.964,
    "l": 26.863
  },
  "oklch": {
    "l": 0.33296,
    "c": 0.11645,
    "h": 265.2
  },
  "luminance": 0.035
}

Semantic roles & 50–950 ramp

primary

#183071

secondary

#A68A3E

accent

#BB40E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #183071

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →